We recommend that you increase the storage capacity when your storage space is running out or when you receive the relevant alerts.
Log on to the ApsaraDB for OceanBase console.
In the left-side navigation pane, click Clusters.
On the Clusters page, click the name of the target cluster to go to the Cluster Workspace page.
Click the More icon in the upper-right corner and select Storage Space Scale-out from the drop-down list.
In the dialog box that appears, click OK.
Specify the storage size you want to increase and agree to the service agreement.
Click Buy Now and make the payment.
You can increase the storage capacity only when all tenants in the cluster are in the Running state. During the scale-out, services will be unavailable for several seconds. Therefore, perform this operation during off-peak hours.